No & entry exists for the following & history table entries (table key):

Message type: E = Error

Message class: FINS_ML_MIG - Messages for S/4HANA Material Ledger Migration

Message number: 023

Message text: No & entry exists for the following & history table entries (table key):

History records (tables: MBEWH, EBEWH, QBEWH, OBEWH) exist without a
corresponding entry for the current period in the xBEW tables (MBEW,
EBEW, QBEW, OBEW). For instance, this occurs due to archiving.
As a consequence, the history records have been skipped during migration
and have not been migrated.
Therefore, fields LBKUM (= inventory quantity) and SALK3 (= inventory
value) are initial.

Error message extract from SAP system. Copyright SAP SE.